Transcript for Authorities warn of extremists ‘likely to use violence’ ahead of inauguration
afternoon. We have never seen anything like it. 20,000 National Guard troops are being deployed to Washington, D.C. Our chief justice department Pierre Thomas has the very latest including that FBI warning for the rest of the country, Pierre. Good morning. Reporter: Washington heads near total lockdown the security here is stunning, and the FBI is sounding the alarm to police across the nation. Their message to them is blunt, you better be ready. The FBI fearing scenes like this could play out across the nation next week. Peter stager of Arkansas just charged with being the man seen here beating an officer mercilessly during the insurrection. This is a new FBI bulletin that warns violent offenders could overwhelm local state and federal law enforcement at statehouses during protests in all 50 states and the fallout continues from the assault on the capitol. More than 30 lawmakers are calling for an investigation into last week's insurrection describing what they called an extremely high number of outside groups being given tours inside the capitol just one day before the uprising. Democrats claim all tours had been canceled last spring due to the pandemic. Meanwhile, the arrest of those in the capitol mob continue to pour in. Robert Sanford, a retired firefight they are Pennsylvania under arrest accused of lobbing a fire extinguisher at police. The violent moment captured here. Kevin Siegfried arrested in Delaware with his son hunter. Overnight a disturbing accusation by prosecutors to a federal judge claiming that Larry Brock was likely intending to use those zip ties as handcuffs to hold his enemies hostage possibly members of congress. The FBI's also currently investigating a mix of suspected radicals it believes were present at the insurrection who may be planning more violence, supporters of qanon, white supreme sessions, the boogaloo, Nazi sympathizers. A wide amount of groups came together and did unite. Reporter: The FBI believes last week's assault has emboldened extremists and the FBI director says agents are going full tilt. We know who you are if you're out there and FBI agents are coming to find you. Reporter: The FBI director says they are investigating 200 suspects just from the attack on the capitol alone. One official I spock to said the number is astounding, perhaps unprecedented for a single case and now have to worry about who else around the nation may be willing to take up the cause of violence, Cecilia. So concerning. Thanks. We turn to airlines and
This transcript has been automatically generated and may not be 100% accurate.